前面介绍了ssm框架的整合开发以及后端接口部分的实现(如今对这些接口有了新的变动以及优化),本文将整合前端框架jquery-easyui来实现前后端接口的对接,更加直接的展示poi导入导出excel的效果。(视频教程地址:https://edu.csdn.net/course/detail/8894 欢迎支持!!)
对于easyui,除了页面的内容展示以及样式排版外,主要的责任在于请求后端接口拿到数据并填充到相应的页面位置中。其中的接口就包括:获取数据列表,搜索,导出数据,导入数据。
为了展示效果,我结合了企业实际项目中的实际业务模块,就用“产品信息列表”来进行演示。页面起名为product.jsp,并在web.xml将其作为welcome-list的欢迎页面中:
product.jsp
具体的页面代码都在下面了,包括:如果获取数据列表并填充到easyui的datagrid,导出数据到excel,打开对话框上传excel文件导入数据等等:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
Insert title here
<%-- --%>
编号
产品名称
单位
价格
库存
备注
采购日期
在这里,后端新增了一个ProductController控制器,用于对接上面页面的请求接口,具体代码如下:
package com.debug.steadyjack.controller;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.lang.StringUtils;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Workbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.http.MediaType;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;
import org.springframework.web.multipart.MultipartHttpServletRequest;
import com.debug.steadyjack.dto.BaseResponse;
import com.debug.steadyjack.enums.StatusCode;
import com.debug.steadyjack.enums.WorkBookVersion;
import com.debug.steadyjack.mapper.ProductMapper;
import com.debug.steadyjack.model.Product;
import com.debug.steadyjack.service.PoiService;
import com.debug.steadyjack.service.ProductService;
import com.debug.steadyjack.utils.ExcelBeanUtil;
import com.debug.steadyjack.utils.ExcelUtil;
import com.debug.steadyjack.utils.WebUtil;
@Controller
public class ProductController {
private static final Logger log=LoggerFactory.getLogger(ProductController.class);
private static final String prefix="product";
@Value("${poi.excel.sheet.name}")
private String sheetProductName;
@Value("${poi.excel.file.name}")
private String excelProductName;
@Autowired
private ProductMapper productMapper;
@Autowired
private PoiService poiService;
@Autowired
private ProductService productService;
/**
* 获取产品列表
* @param name
* @return
*/
@RequestMapping(value=prefix+"/list",method=RequestMethod.GET)
@ResponseBody
public List list(String name){
List products=new ArrayList();
try {
products=productMapper.selectAll(name);
} catch (Exception e) {
log.error("获取产品列表发生异常: ",e.fillInStackTrace());
}
return products;
}
/**
* 导出excel
* @param response
* @return
*/
@RequestMapping(value=prefix+"/excel/export",method=RequestMethod.GET)
public @ResponseBody String exportExcel(HttpServletResponse response,String search){
try {
List products=productMapper.selectAll(search);
String[] headers=new String[]{"id编号","名称","单位","单价","库存量","采购日期","备注信息"};
List
优化过后的PoiService代码如下:
package com.debug.steadyjack.service;
import java.io.InputStream;
import java.util.ArrayList;
import java.util.List;
import java.util.Objects;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.xssf.usermodel.XSSFWorkbook;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Service;
import org.springframework.web.multipart.MultipartFile;
import com.debug.steadyjack.enums.WorkBookVersion;
import com.debug.steadyjack.model.Product;
import com.debug.steadyjack.utils.DateUtil;
import com.debug.steadyjack.utils.ExcelUtil;
@Service
public class PoiService {
private static final Logger log=LoggerFactory.getLogger(PoiService.class);
/**
* 读取excel数据
* @param wb
* @return
* @throws Exception
*/
public List readExcelData(Workbook wb) throws Exception{
Product product=null;
List products=new ArrayList();
Row row=null;
int numSheet=wb.getNumberOfSheets();
if (numSheet>0) {
for(int i=0;i0) {
for(int j=1;j<=numRow;j++){
//TODO:跳过excel sheet表格头部
row=sheet.getRow(j);
product=new Product();
String name=ExcelUtil.manageCell(row.getCell(1), null);
String unit=ExcelUtil.manageCell(row.getCell(2), null);
Double price=Double.valueOf(ExcelUtil.manageCell(row.getCell(3), null));
String stock=ExcelUtil.manageCell(row.getCell(4), null);
String remark=ExcelUtil.manageCell(row.getCell(6), null);
product.setName(name);
product.setUnit(unit);
product.setPrice(price);
product.setStock(Double.valueOf(stock));
String value=ExcelUtil.manageCell(row.getCell(5), "yyyy-MM-dd");
product.setPurchaseDate(DateUtil.strToDate(value, "yyyy-MM-dd"));
product.setRemark(remark);
products.add(product);
}
}
}
}
log.info("获取数据列表: {} ",products);
return products;
}
/**
* 根据版本来区分获取workbook实例
* @param version
* @return
*/
public Workbook getWorkbook(String version,InputStream inputStream) throws Exception{
Workbook wk=null;
if (Objects.equals(WorkBookVersion.WorkBook2003.getCode(), version)) {
wk=new HSSFWorkbook(inputStream);
}else if (Objects.equals(WorkBookVersion.WorkBook2007.getCode(), version)) {
wk=new XSSFWorkbook(inputStream);
}
return wk;
}
/**
* 根据file区分获取workbook实例
* @param version
* @return
*/
public Workbook getWorkbook(MultipartFile file,String suffix) throws Exception{
Workbook wk=null;
if (Objects.equals(WorkBookVersion.WorkBook2003Xls.getCode(), suffix)) {
wk=new HSSFWorkbook(file.getInputStream());
}else if (Objects.equals(WorkBookVersion.WorkBook2007Xlsx.getCode(), suffix)) {
wk=new XSSFWorkbook(file.getInputStream());
}
return wk;
}
}
以及需要用到根据上传的文件名来决定获取的WorkBook的实例的WorkBookVersion枚举类:
package com.debug.steadyjack.enums;
import java.util.Objects;
public enum WorkBookVersion {
WorkBook2003("2003","2003版本workBook"),
WorkBook2007("2007","2007版本workBook"),
WorkBook2003Xls("xls","xls后缀名结尾-2003版本workBook"),
WorkBook2007Xlsx("xlsx","xlsx后缀名结尾-2007版本workBook");
private String code;
private String name;
private WorkBookVersion(String code, String name) {
this.code = code;
this.name = name;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
/*public static WorkBookVersion valueOfVersion(String code){
if (Objects.equals(WorkBook2003.getCode(), code)) {
return WorkBook2003;
}else if (Objects.equals(WorkBook2007.getCode(), code)) {
return WorkBook2007;
}else{
return null;
}
}*/
public static WorkBookVersion valueOfVersion(String version) {
if (Objects.equals(WorkBook2003.getCode(), version)) {
return WorkBook2003;
}else if (Objects.equals(WorkBook2007.getCode(), version)) {
return WorkBook2007;
}else{
return null;
}
}
public static WorkBookVersion valueOfSuffix(String suffix) {
if (Objects.equals(WorkBook2003Xls.getCode(), suffix)) {
return WorkBook2003Xls;
}else if (Objects.equals(WorkBook2007Xlsx.getCode(), suffix)) {
return WorkBook2007Xlsx;
}else{
return null;
}
}
}
到此,就没有了。然后点击项目右键run到tomcat7服务器,可以看到请求了产品的数据列表,搜索,导出数据到Excel以及导入数据到数据并展示在列表中,详细截图如下:
好了,关于springmvc+spring+mybatis整合框架之poi导入导出excel这一系列就介绍到这里来,相关的源码已经贴在这几篇博客了,有相关问题可以加qq咨询:1948831260。
另外,为了能介绍得更加清楚,我将特意将此录制为两三节小视频来介绍这个小项目,包括ssm框架的通用搭建法,整合poi框架实现导入导出excel以及如何整合easyui框架等等,如果需要,可以加上面qq付费领取(毕竟是自己辛勤付出,总要有点回报!),大概35-50块低价出售:包括项目源码、整体框架搭建的全过程以及实战视频、以及售后指导服务!当然啦,如果有需要定制开发的或者有外包的也可以加我上面qq咨询。